Joe Schmoe said:
It is a funny world in which one can say that something that is unstable, bleeding edge, and (at this point in time) pretty much doesn't work, is "recommended for newbies".
I say, go with the Debian image.
Note, BTW, that RS and/or Farnell (I can't remember which exactly) have disavowed the "Fedora remix" unless/until the bugs get worked out of it.
Just my take on things but I think the Foundation has stated over and over again that this is a "developer's release". At this point in time NOTHING should be "recommended for newbies".
My first option would be Debian 'cause that's been the "branch" of Linux that I've used the most. I've tried several flavours of Red Hat over the years but still prefer Debian. But I plan on having several SD cards, each with it own distro and I think that in the next few weeks, when thousands of people finally get their hands on the actual hardware, the "bugs" will disappear quickly.